> ohh....means that Firebird Server does not understand Catalog right
> ? hmmm......

Right.

> actually I'm using PowerBuilder......

Quick googling tells me that you can switch catalog tables off:

"If you don't want to use the PowerBuilder Catalog tables,
set the PBNoCatalog in the PB.ini file:

PBNoCatalog=1"

But I'm not sure if these catalog tables has anything to do with the
JDBC catalogs.

Best regards,
Roman Rokytskyy